Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
010085lightly pollutedexcellent161excellent
000082lightly pollutedexcellent151excellent
230086lightly pollutedexcellent141excellent
220085lightly pollutedexcellent151excellent
210083lightly pollutedexcellent151excellent
200066lightly pollutedexcellent111excellent
190047goodexcellent71excellent
180030goodexcellent51excellent
170023goodexcellent41excellent
160020excellentexcellent31excellent
150020excellentexcellent41excellent
140019excellentexcellent31excellent
130016excellentexcellent21excellent
120015excellentexcellent31excellent
110012excellentexcellent31excellent
100025goodexcellent51excellent
090038goodexcellent71excellent
080051goodexcellent81excellent
070058goodexcellent81excellent
060046goodexcellent81excellent
050049goodexcellent71excellent
040046goodexcellent61excellent
030048goodexcellent71excellent
020051goodexcellent71excellent